From patchwork Mon Apr 1 22:46:49 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: William Tu X-Patchwork-Id: 1073463 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=openvswitch.org (client-ip=140.211.169.12; helo=mail.linuxfoundation.org; envelope-from=ovs-dev-bounces@openvswitch.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="Lj6bc7YS"; dkim-atps=neutral Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 44Y6v1478Cz9sSV for ; Tue, 2 Apr 2019 09:48:13 +1100 (AEDT) Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id EF8952154; Mon, 1 Apr 2019 22:47:30 +0000 (UTC) X-Original-To: dev@openvswitch.org Delivered-To: ovs-dev@mail.linuxfoundation.org Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 54C261AC3 for ; Mon, 1 Apr 2019 22:47:29 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-wm1-f65.google.com (mail-wm1-f65.google.com [209.85.128.65]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id BEBD0712 for ; Mon, 1 Apr 2019 22:47:28 +0000 (UTC) Received: by mail-wm1-f65.google.com with SMTP id z24so1205816wmi.5 for ; Mon, 01 Apr 2019 15:47:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=e1mvbbvjoUkvZH14Xd3cGozfREmfo5j/0uIatOTXpFw=; b=Lj6bc7YSLeCgnJ5XEH80w0QKE1bsUhcQqD4xbd5J6Q5IiMuSUo8BRhC8noQFLGTeZc EweebVvQCyLOJ6IpPMGFmNR/ruqOsUAj4pdf6Z/MN0LxCvM9UBmjD196KOtGWCkfe2af kUUHB1mJxb12Kkh5lwz1ephiqi5d7AGe2KJIs4HmqQMOHi3asAcmMNXjwyEC6wJ2XVtn 1/WpBE1W7maseDtdkBX/1prUrK07LRw6TLqDOw8Y4QIRYCSPeARXJ7Bh+v3SrwXwXWKb sElWOoI+Bnoqc+uSWDHhVdF7ZtVUz6yUZLKX6Irft3B1pkRCcYIV2XllBl2Vc4WismgO uX/Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=e1mvbbvjoUkvZH14Xd3cGozfREmfo5j/0uIatOTXpFw=; b=XgGkciNb5KCXT21YVvN9zZX3i3wLCD+o0LSFQUe3wLzuUhWKE+Mj6IPpcMVRL36dL3 unv9044fIKcHo8YMQtP8JvMA8NBBbdpdPCt00w8z4gWdqPsYpRkYk0/A6EsVjdHj7i7T NAl7sFa8ltWxtLoMuidYjvY35fO9Loj5WIV4XPhtbz780y1dW+C7TzLeM9t4jl38/TX6 Mw/NG39xevuRidyJkVCXBdD9VMT8vA9d+lFZcGOmii77eLyejeeup6osE29L14vt9wt1 Kd+ssj5pauSfghI43InU7BIzWmI3ng8A7gzs+zlJQPspVexTfQH62eKj+scEtnHjOYIv vQ1Q== X-Gm-Message-State: APjAAAUT1GfSY6lwgZyzFhywF7NGx0GLS7sc+IlSL2SLBu/pGM/QydHt K62Zd7atJLFUZtSmnk64A+Hk4I+W X-Google-Smtp-Source: APXvYqzqEuxD1xNZmbMDSKL37ne7ptz8NXs5MZOco3UN/enqiFIBUpH4O+E88OaZwl44F5BNBy1zpg== X-Received: by 2002:a7b:cbd6:: with SMTP id n22mr1332353wmi.57.1554158847169; Mon, 01 Apr 2019 15:47:27 -0700 (PDT) Received: from sc9-mailhost2.vmware.com ([66.170.99.2]) by smtp.gmail.com with ESMTPSA id w9sm27720055wmi.0.2019.04.01.15.47.24 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 01 Apr 2019 15:47:26 -0700 (PDT) From: William Tu To: dev@openvswitch.org, trozet@redhat.com, bmcfall@redhat.com, echaudro@redhat.com, magnus.karlsson@gmail.com, bjorn.topel@gmail.com, tuc@vmware.com Date: Mon, 1 Apr 2019 15:46:49 -0700 Message-Id: <1554158812-44622-2-git-send-email-u9012063@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1554158812-44622-1-git-send-email-u9012063@gmail.com> References: <1554158812-44622-1-git-send-email-u9012063@gmail.com> X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE autolearn=no version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org Subject: [ovs-dev] [PATCH RFCv4 1/4] Add libbpf build support. X-BeenThere: ovs-dev@openvswitch.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: ovs-dev-bounces@openvswitch.org Errors-To: ovs-dev-bounces@openvswitch.org Using AF_XDP depends on libbpf for managing eBPF/XDP program and maps. This patch checks if libbpf and if_xdp (XDP interface) are availble to determine if we should enable AF_XDP support. Signed-off-by: Yi-Hung Wei Co-authored-by: William Tu --- acinclude.m4 | 20 ++++++++++++++++++++ configure.ac | 1 + lib/automake.mk | 1 + 3 files changed, 22 insertions(+) diff --git a/acinclude.m4 b/acinclude.m4 index 9d6b682266e1..d0cd8aac2c1d 100644 --- a/acinclude.m4 +++ b/acinclude.m4 @@ -205,6 +205,26 @@ AC_DEFUN([OVS_CHECK_LINUX_TC], [ [Define to 1 if TCA_PEDIT_KEY_EX_HDR_TYPE_UDP is available.])]) ]) +dnl OVS_CHECK_LINUX_AF_XDP +dnl +dnl Check both Linux kernel AF_XDP and libbpf support +AC_DEFUN([OVS_CHECK_LINUX_AF_XDP], [ + AC_MSG_CHECKING([whether AF_XDP is supported]) + AC_CHECK_HEADER([bpf/libbpf.h], + [HAVE_LIBBPF=yes], + [HAVE_LIBBPF==no]) + AC_CHECK_HEADER([linux/if_xdp.h], + [HAVE_IF_XDP=yes], + [HAVE_IF_XDP=no]) + AM_CONDITIONAL([SUPPORT_AF_XDP], + [test "$HAVE_LIBBPF" = yes && test "$HAVE_IF_XDP" = yes]) + AM_COND_IF([SUPPORT_AF_XDP], [ + AC_DEFINE([HAVE_AF_XDP], [1], [Define to 1 if linux/if_xdp.h is available.]) + LIBBPF_LDADD=" -lbpf -lelf" + AC_SUBST([LIBBPF_LDADD]) + ]) +]) + dnl OVS_CHECK_DPDK dnl dnl Configure DPDK source tree diff --git a/configure.ac b/configure.ac index 8a05870a43dc..5ce7dc9b33d2 100644 --- a/configure.ac +++ b/configure.ac @@ -99,6 +99,7 @@ OVS_CHECK_SPHINX OVS_CHECK_DOT OVS_CHECK_IF_DL OVS_CHECK_STRTOK_R +OVS_CHECK_LINUX_AF_XDP AC_CHECK_DECLS([sys_siglist], [], [], [[#include ]]) AC_CHECK_MEMBERS([struct stat.st_mtim.tv_nsec, struct stat.st_mtimensec], [], [], [[#include ]]) diff --git a/lib/automake.mk b/lib/automake.mk index b1ff495ff1f3..db868933c37a 100644 --- a/lib/automake.mk +++ b/lib/automake.mk @@ -9,6 +9,7 @@ lib_LTLIBRARIES += lib/libopenvswitch.la lib_libopenvswitch_la_LIBADD = $(SSL_LIBS) lib_libopenvswitch_la_LIBADD += $(CAPNG_LDADD) +lib_libopenvswitch_la_LIBADD += $(LIBBPF_LDADD) if WIN32 lib_libopenvswitch_la_LIBADD += ${PTHREAD_LIBS}